Which of the following is the best approximation of 4 times the positive cube root of 23?
A. 12.7
B. 11.4
C. 16.2
D. 96.7
Therefore, the Correct Answer is B.
More Questions on TEAS 7 Math
-
Q #1: A recipe calls for 6.5 teaspoons of vanilla. 1 teaspoon equals approximately 4.93 mL. Which of the following is the correct amount of vanilla in mL? (Use the conversion rates as provided)
A. 32.05 mL
B. 29.55 mL
C. 34.20 mL
D. 25.80 mL
Answer Explanation
Explanation:
We need to find the mL in 6.5 teaspoons from the given information.
If we let x represent the amount of vanilla in mL, and set a proportion equation with number of teaspoons as numerator and mL as denominator, then:
(frac{6.5}{x} = frac{1}{4.93})
Find the value of x by cross-products
6.5 * 4.93 = x
32.05 = x
Therefore, 6.5 teaspoons equal 32.05 mL.
-
Q #2: Which of the following is the value of x in the equation below. (|2x - 4| - 10 = 2)
A. x=4 or x=-8
B. x=-4 or x=8
C. x=-2 or x=1
D. x=-3 or x=5
Answer Explanation
Explanation:
We need to find the value of x from the given equation. First, we move the value of 10 to the right-hand side of the equation.
Add 10 to both sides of the equation
Next, we apply the absolute rule:
If
, a>0, then u=a or u=-aIn this case a=12, which is greater 0. Then, the first condition becomes
Solving for x
The second condition becomes
Solving for x
Then, the value of x is -4 or 8.
-
Q #3: Four friends are sharing a pizza. One friend eats a third of the pizza. The other three friends equally divide the rest among themselves. What portion of the pizza did each of the other three friends receive?
A. 7/9
B. 1/3
C. 1/3
D. 2/9
Answer Explanation
We are asked to find a fraction of pizza other three friends got.
A whole pizza represents 1, and one friend eats 1/3 of 1=1/3*1=1/3
Now, the remaining pizza is 1-1/3=3/3-1/3=2/3
The three friends share 2/3 of pizza equally. So, each friend gets
Therefore, each of the three friends get 2/9 of the pizza.
